Ibus eating cntl-space key

On 07/22/2011 07:57 PM, Stuart McGraw wrote:
> In Emacs, the cntl-space key is important and
> I use it frequently. Because it conflicts with
> the use of cntl-space in Ibus to toggle Ibus
> on/off, I remapped alt-space to that function in
> Ibus. This worked well in Fedora-11 for several
> years and in Fedora-15 after I first installed it.
> It stopped working after an Ibus update but another
> Ibus update that arrived shortly after fixed it
> again. After yet another Ibus update it is broken
> again. :-(
>> Currently (ibus-1.3.99.20110714-11), if cntl-space is
> assigned "Enable or Disable" in Ibus prefs, it works
> as expected. However, typing cntl-space in Emacs is
> not seen by Emacs (unsurprisingly -- I assume it was
> intercepted by Ibus).
>> When I delete cntl-space in Ibus prefs and assign
> alt-space instead, alt-space then toggles the IME
> on/off as expected and cntl-space has no effect in
> Ibus (also as expected). However, cntl-space still
> has no effect in Emacs (unexpected!).
>> Terminating Ibus results in cntl-space working in
> Emacs again.
>> Is there some secret setting I am missing? Should I
> report a bug?
For closure, this was reported in
https://bugzilla.redhat.com/show_bug.cgi?id=725494
and in there are instructions on how to fix temporarily
until a more permanent update is released.